Abstract
AbstractA diaminomethylenemalononitrile organocatalyst efficiently promoted the asymmetric conjugate addition of cyclic β‐keto esters to benzoyl acrylonitriles to afford the corresponding adducts. This was followed by the transformation of the nitrile group into an amide group, resulting in bicyclic γ‐lactam derivatives in good yields with excellent enantioselectivities (up to 99 % ee). As far as we know, this is the first study to synthesize chiral bicyclic γ‐lactam derivatives from cyclic β‐keto esters and benzoyl acrylonitriles.
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